unity build_error ai_generated true

IL2CPP 错误：Managed/UnityEngine.dll 不可用于代码生成。这可能是因为 IL2CPP 后端缺失或损坏。

IL2CPP error: Managed/UnityEngine.dll is not available for codegen. This can happen if the IL2CPP backend is missing or corrupted.

ID: unity/il2cpp-codegen-managed-backend-unavailable

其他格式: JSON · Markdown 中文 · English
82%修复率
88%置信度
1证据数
2023-06-15首次发现

版本兼容性

版本状态引入弃用备注
Unity 2021.3.0f1 active — — —
Unity 2022.3.0f1 active — — —
Unity 2023.2.0f1 active — — —
Unity 2024.1.0b1 active — — —

根因分析

IL2CPP 代码生成后端无法找到托管的 UnityEngine.dll，通常是由于 Unity 的 IL2CPP 支持包安装不完整或损坏。

English

The IL2CPP code generation backend cannot locate the managed UnityEngine.dll, often due to incomplete installation or corruption of Unity's IL2CPP support package.

generic

官方文档

https://docs.unity3d.com/2023.2/Documentation/Manual/IL2CPP.html

解决方案

  1. Reinstall the IL2CPP package via Unity Hub: Open Unity Hub, select the project's Unity version, click 'Manage Modules', ensure 'Windows Build Support (IL2CPP)' or equivalent is checked, then apply changes.
  2. Manually repair Unity installation by running the Unity installer's repair option: Uninstall Unity version via Control Panel, then reinstall from Unity Hub with IL2CPP support included.

无效尝试

常见但无效的做法:

  1. Reimport all assets via Assets -> Reimport All 95% 失败

    Reimporting assets does not repair the IL2CPP backend installation; it only refreshes asset metadata.

  2. Delete Library folder and restart Unity 80% 失败

    Deleting Library removes cached data but does not fix missing IL2CPP components in the Unity installation.

  3. Switch to Mono scripting backend and back to IL2CPP 70% 失败

    This may trigger a rebuild but does not address underlying corruption of the IL2CPP package.